/*
 * Copyright 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package pt.up.beta.mobile.ui;

import pt.up.beta.mobile.R;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;

/**
 * A {@link BaseActivity} that simply contains a single fragment. The intent
 * used to invoke this activity is forwarded to the fragment as arguments during
 * fragment instantiation. Derived activities should only need to implement
 * {@link pt.up.beta.mobile.ui.BaseSinglePaneActivity#onCreatePane()}.
 */
public abstract class BaseSinglePaneActivity extends BaseActivity {
	private Fragment mFragment;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_singlepane_empty);

		final String customTitle = getIntent().getStringExtra(
				Intent.EXTRA_TITLE);
		if (customTitle != null)
			actionbar.setTitle(customTitle);

		if (savedInstanceState == null) {
			mFragment = onCreatePane();
			mFragment.setArguments(intentToFragmentArguments(getIntent()));

			getSupportFragmentManager().beginTransaction()
					.add(R.id.root_container, mFragment).commit();
		}
	}

	/**
	 * Called in <code>onCreate</code> when the fragment constituting this
	 * activity is needed. The returned fragment's arguments will be set to the
	 * intent used to invoke this activity.
	 */
	protected abstract Fragment onCreatePane();

}
